Apparatus for coking coal briquets.



P. HEIN.

APPARATUS FOR COKING COAL BRIQUETS.

APPLICATION FILED JUNE 19, 1914.

Patented Oct. 5, 1915,

PAUL HEIN, 0F ESSEN-R'U'TTENSCHEID GERMANY. ASSI GNOR T0 -DIAMANT-BRIKETT- WERKE G. M. B.

APPARATUS FOR 1-1.. OF BERLIN. GERMANY.

COKING COAL BRIQUETS.

Application filed June 19 191 i.

which the following is a specification.

If in the manufacture of coal briipu'tsa. water-soluble binding n'iediumor agglutinant such as sultite lye that is the lye obta i ned" I from the sulfitekztilliilose manufacture and gases.

called cellulid or glutrin, molasses and so forth is employed, the briquets formed by compression must be subjected foizsome time to the action of dry heat for thepuw pose of carbonizing the agglutinant to render same insoluble, the teniperature being kept so high'that a coking of the agglutinant takes place, while the coal itself does not begin to coke or disappear.

The coking of the agglutinant in special furnaces or drums, for example in ordinary shaft furnaces with throttlcd dis charge, or 1n shaft furnaces with superposed drums arranged therein through which the briquets pass in succession in the opposite directions to the ascending hot The lowest drum located in the hottest zone the furnace exerts the most intense coking effect, but the heat absorbed by the briquets in this drum does not act for a sufiicient length of time to produce an adequate or practically complete coking of the binding medium. I i

The improved operation; according to my invention consists m starting with the coking of the agglutinant in a shaft furnace of the said kind and in completing the coking action in a special reservoir or'chamber provided for the purpose, whose action is com -fparable to that of the modern cooking range,

at a temperature which drops somewhat below the maximum temperature of the furnace, that isto say without further heating. This final 0r after-coking reservoir or chamber is in direct communication with the outlet for the briquets from the furnace, for. example by the intermediary of a passage closed to the outer air, and which may be located either wholly or in part outside the furnace.

A. novel apparatus for carrylng'my invention into effect is illustrated in conplnotion Specification of Letters Patent.

is effected Patented Oct. 5,1 915.

Serial No. 846,070.

with a shaft furnace with superposed coking drums in the m-companring drawing.

in the drawing the lower part of the known type of furnace is represented in section together with the lo\\'est coking drum.

The hot gases coming from th furnace issue from the passage u into the shaft 1) and then upward through the rotating drum r' and through the other rotating drums arranged above it but not shown. 'lhesc drun'is consis-t of r \'li|ulri -.al boxes having perforated walls so that the hot gases have free access to the briquets contained therein. The outer casing of the drum is stationary and is provided with inlets and outlets. \Vhilo in the known shaft outlet from the lowest drum is carried outside the iurnac and directly to an open con- \eyer apron upon which the hot briquets are conveyed to the place of storage or to trucks, in my novel arrangement the outlet cl from the. lowest drum connnunicates through a pipe c, or some other closed passage, with another drum f rotating in a stationary casiiig y adapted to receive the hot briquets in its eight rotating compartments. The briqnets aredischarged through a'chute h in the casing g onto a conveyor apron or the like (not shown).

The 'drum 7 may be arranged Wholly or partially outside the shaft furnace and is preferably driven positively by the mechanism driving the drums above referred to. The drum 7 serves a two-fold purpose,

the briquets not yet ready for store and the correlated slow cooling of the superficial strata of the briquets, so that the subsequent cooling can be effected by means of Water on the conveyer apron or in the storage )lace without causing cracking or breaking; of the superficial strata as has hitherto been thecase. The compartments in drum 7 are of such a size that is to say the capacity of the drum is so great that the latter is able to rota to at a far lower speed than the roasting drums in the shaft "furnace Without causing blockage of the passage 6. It is essential to keep the speed of rotation of this after-coking drum f so low that the briquets remain for a sufiicient length of time in the zone of moderate heat to insure the thorough roasting of the quets before they leave the drum f.

interior of the bri- 5 of the drum. .flanges 4 to which the end walls 5 of the drum are secured by rivets o the like. The

Thed'rum f consists of. long hub 1 keyed to the rotary shaft 2 and provided with radially projecting walls 3 extending longitudinally of said shaft throughout the length The radial walls 3 have construction of the drum, of course, may varied to suit different requirements.

10 There is no casing within casing g.

at I claim is: c In an apparatus for coking coal-briquets containing an agglutinant capable of carbonization, the combination with a furnace,

of a series of superposed rotatable coking drums, a rotatable aftcr-coking drum, a chute leadin from the lowermost of said drums to saig after-coking drum, said aftercoking drum bein partially built and extending into said urnace, and a stationary casing inclosing said after-coking drum and having a discharge opening.

In testimony whereof I have aflixed my signature in presence of two Witnesses.

PAUL HEIN. 'Witnesses:

WOLDEMAR HAUPT, HENRY HASPER. 

